Viburnum opulus fruit extract-capped gold nanoparticles attenuated oxidative stress and acute inflammation in carrageenan-induced paw edema model

• Published in: Green chemistry letters and reviews Vol. 15; no. 2; pp. 320 - 336
• Main Authors: Bidian, Cristina, Filip, Gabriela Adriana, David, Luminița, Moldovan, Bianca, Baldea, Ioana, Olteanu, Diana, Filip, Mara, Bolfa, Pompei, Potara, Monica, Toader, Alina Mihaela, Clichici, Simona
• Format: Journal Article
• Language: English
• Published: Abingdon Taylor & Francis 03.04.2022; Taylor & Francis Ltd; Taylor & Francis Group
• Subjects: Animal models; Antioxidants; Biological effects; Carrageenan; Edema; Fruits; Gold; Gold nanoparticles; IL-1β; Indomethacin; Inflammation; Inflammatory response; Interleukin 10; Interleukin 6; Light scattering; Micrography; Nanoparticles; Oxidative stress; Photomicrographs; Photon correlation spectroscopy; Spectroscopy; Transmission electron microscopy; Tumor necrosis factor-α; Viburnum opulus; Zeta potential
• ISSN: 1751-8253; 1751-7192
• DOI: 10.1080/17518253.2022.2061872

This study designed, characterized, and investigated the antioxidant and anti-inflammatory effects of gold nanoparticles coated with Viburnum opulus extract (AuNP-VO) compared to those of Viburnum opulus fruit extract (VO) and indomethacin, on experimental inflammation in Wistar rats. The structure and properties of the synthesized AuNPs-VO were evaluated by UV-Vis spectroscopy, transmission electron microscopy (TEM), dynamic light scattering (DLS), and zeta potential measurements. Their biological effects on paw inflammation were assessed at 2, 24, and 48 h after the administration of plantar carageenan by quantifying oxidative stress and inflammation and by histopathological analysis. TEM micrographs confirmed the spherical shape, homogeneous distribution, and nano-size of 65 nm. AuNP-VO and VO showed antioxidant and anti-inflammatory effects on plantar inflammation with different dynamics of action. AuNP-VO exerted antioxidant effects, especially, at 48 h and diminished the plantar inflammation in the early stages (IL-1α, IL-1β, IL-6, TNF-α and IL-10) and late stages (IL-1β, p < 0.01) whereas VO reduced the inflammatory response, predominantly in the early stages (p < 0.01; p < 0.001), and maintained reduced IL-1β values (p < 0.001) and a lower histopathological inflammatory score at 48 h. In conclusion, AuNP-VO and VO extract can be used as valuable agents for the treatment of diseases associated with inflammation.